First flight of Kamov Ka-15M
Saturday, March 31, 1956
- Kamov Design Bureau, Russia 
This is a Notable Operational milestone.
Description:
Note: Only the month and year of this milestone are known - March 31 has been chosen as an approximate but conservate date
Source: G.I. Kuznetsov. OKB N.I.Kamova. Published by Kamov, 1999. Page 371. Print.
